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The spine can move in six (6) nonaxial glide motions/directions.
- The nonaxial glide motions of the spine are:
- Anterior glide
- Posterior glide
- Right lateral glide
- Left lateral glide
- Distraction (traction)
- The annular fibers of the annulus fibrosus are shown being pulled taut and limiting these motions.
- Ligaments of the spine would also be pulled taut and limit these motions.
- A nonaxial motion is defined as one in which each point on a bone moves exactly the same amount as each and every other point.
- Nonaxial motions are also known as gliding motions, sliding motions, translational motions, and planar motions.